people what kind of treatments they can v the truth is the board looks at overall medicare costs by law doesn't have the power to tell doctors what treatments they can prescribe. starting today, president obama and mitt romney weigh in on the issues in an exclusive presidential forum on cbssf.com. today's issue, the economy. >>> 4:33. developing news from the south bay. two homicide investigations in san jose. the city's 36th homicide of the year happened about 12:30 this morning. a man was killed in east san jose. someone old fire on the victim and other people standing near a home. police think it was gang- related. there are no suspects. >>> there was a fight on south second street in the downtown area. about 8:30 last night police found the victim a man who was pronounced dead at the hospital. no suspect in that case. police are still trying to learn exactly what happened there. >>> a bizarre confrontation on the caltrain tracks turned the evening commute into a mess t took place near the diridon station in downtown san jose shortly after 5:00 in the afternoon. caltrain service thro